My friend, Kristin (mom of Brodie and Mason below), highly recommended the Miracle Blanket®. When my twins started going through a fussy stage at about 4 weeks, I ordered the blankets pronto and was extremely happy to receive them the same week. [It took a little getting used to] but after I did, my boys started sleeping through the night at 7 weeks and 8 weeks. That really was a miracle. :)My niece asked me what she could do for her 4-week old and I told her to get the Miracle blanket! 😉